Measurement of agricultural ecological efficiency in Chongqing City based on undesired output SBM model and center of gravity model
Undesired output SBM model,correlation analysis model and center of gravity model were used to evaluate the agricultural ecological efficiency of Chongqing City from 2010 to 2018,the correlation of the spatial distribution of agricultural ecological efficien-cy in Chongqing in each year,and the evolution of the gravity center of agricultural ecological efficiency.The results showed that,from 2010 to 2018,the average value of agricultural ecological efficiency in Chongqing City had fluctuated upward,and the spatial distribu-tion correlation of agricultural ecological efficiency had changed from a negative correlation to a positive correlation.The shift of the gravity center of agricultural ecological efficiency presented a spiral shape and was scattered in the Changshou District of Chongqing City.
agricultural ecological efficiencyundesired output SBM modelcenter of gravity modelcorrelation analysisChongq-ing City
NETL
NSTL
万方数据
